{"product_id":"s-s-cycle-power-packs-harley-davidson-50","title":"S\u0026S Cycle Power Packs — Harley-Davidson Electra Glide, Softail Heritage Classic, Electra Glide Classic (1955-2026)","description":"\u003cp\u003eS\u0026amp;S Cycle Power Packs are high-performance piston sets engineered for Harley-Davidson engines to increase displacement and power output. Direct bolt-in replacement for stock pistons when paired with compatible cylinders and gasket kits.\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eEngine displacement increase\u003c\/li\u003e\n  \u003cli\u003eDirect replacement piston set\u003c\/li\u003e\n  \u003cli\u003eS\u0026amp;S Cycle engineering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e S\u0026amp;S Cycle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 310-1390A\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Engine Components \/ Piston Sets - Powersports\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 44.19 lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFitment\u003c\/h2\u003e\n\u003cp\u003eFits Harley-Davidson engines. Requires compatible cylinders and gasket kits for installation.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eDo I need new cylinders to use these pistons?\u003c\/h3\u003e\n\u003cp\u003eYes — S\u0026amp;S Power Packs are designed to work with compatible S\u0026amp;S cylinders and gasket kits as a complete top-end upgrade.\u003c\/p\u003e\n\u003ch3\u003eWill these bolt directly into my stock cylinders?\u003c\/h3\u003e\n\u003cp\u003eNo — these are engineered to pair with S\u0026amp;S-matched cylinders for proper fit and displacement gains.\u003c\/p\u003e\n\u003ch3\u003eWhat displacement increase should I expect?\u003c\/h3\u003e\n\u003cp\u003eDisplacement gain depends on which S\u0026amp;S cylinder kit you pair with these pistons. Check the cylinder kit specs for your target displacement.\u003c\/p\u003e\n\u003ch3\u003eDo I need a tuner with this upgrade?\u003c\/h3\u003e\n\u003cp\u003eA fuel\/air calibration is strongly recommended after installing a complete piston and cylinder upgrade to optimize power and ensure proper engine operation.\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":53040433725551,"sku":"T14-1020385","price":3294.95,"currency_code":"USD","in_stock":false}],"url":"https:\/\/vtwinbikers.com\/products\/s-s-cycle-power-packs-harley-davidson-50","provider":"Vtwinbikers","version":"1.0","type":"link"}